Lesson video

Hello, my name is Mr. Tilstone and I'm a teacher.

I'm really looking forward to teaching you this lesson because it's all about fractions and that's one of my favourite parts about maths.

I hear you are becoming quite the fractions experts.

You know lots about halves, you know lots about thirds, and you know lots about quarters.

So let's see what else we can learn today.

If you're ready to begin the lesson, help me out by doing a countdown from five.

Are you ready? Five, four, three, two, one, let's begin.

The outcome of today's lesson is this, I can read and write the fraction notation, 1/2, 1/3 and 1/4 and relate this to fractions of objects, shapes, and sets.

And our keywords, we've just got one.

If I say it, will you say it back? My turn, fraction, your turn.

And you're going to hear that word a lot today.

What do you know about fractions already? Our lesson is split into two parts.

The first will be writing half and the second writing different fractions.

So if you're ready, let's start by thinking about how to write half.

In this lesson, you're going to meet Lucas, Sofia, and Izzy.

Have you met them before? They're here today to give us a helping hand with the maths.

Sofia and Izzy are going to share this cake, this yummy-looking cake.

They want to share it fairly so that they both get the same amount.

Hmm? How could you do that? What about like this? How could you describe what they've got, what each of them have got? What is the fraction called? Can you remember? The cake has been split in half, so each of them has got one-half.

The whole has been divided into 2 equal parts, so each part is one-half.

And that's the thing about fractions, they are equal parts.

When the whole has been divided into two equal parts, each part is one-half and you knew that already, didn't you? I'm sure you did.

We have one-half each.

And Lucas says, "I've learnt about this before.

I know another way to write one-half using numerals." Ooh, okay.

So instead of words, let's have a look.

"How exciting," say the girls, "can you please show us?" Lucas shows Sofia how to write one-half using numerals.

Right, are you ready for this? Let's have a look.

The whole has been divided into, and for that part we write this, it's called a fraction bar, so this horizontal line.

The whole has been divided into 2 equal parts.

So we write the number of equal parts.

You have 1 of the parts.

So we write how many parts.

And that's how to write a fraction.

The whole has been divided into how many equal parts and how many of the parts you have.

So it goes in that order.

We'll do lots of practise of this, don't worry, but that's how to do it.

Lucas uses Sofia's sentence to help him write the fraction using numerals.

Let's watch him write it again while Sofia says the sentence.

Are you ready? "The whole has been divided.

." What's he going to write? The fraction bar.

"Into 2 equal parts." Where's he going to write 2? Top or bottom? Bottom.

That's the denominator.

"We have one of the parts." Where is he going to write 1? Top.

That's the numerator.

Now Sofia will try to write the fraction using numerals while Izzy says the sentence.

"The whole has been divided into 2 equal parts.

We have one of the parts." That's good, isn't it? And that's quicker than writing the words one-half.

Izzy says, "Does this mean that the whole has been divided into 2 equal parts?" Well, I can see the fraction bar for the whole has been divided into and I can see the 2 for 2 equal parts.

So yes, that's right, Izzy, well done.

"And this means that I have 1 of the parts?" "You're right again.

I don't think you need my help anymore, well done!" How about you? Do you think you're getting the hang of this? Let's see.

Draw a line to show which part of the fraction matches each part of this sentence.

So we've got the whole has been divided into 2 equal parts and you have 1 of the parts.

So look at the fraction.

It's got three different parts to it.

Can you label them correctly? Pause the video and have a go.

The whole has been divided into, is this, the fraction bar, 2 equal parts, and you have 1 of the parts.

Sofia and Izzy are going to practise writing half using numerals.

So we can see halves here.

Each part is one-half.

"The whole has been divided into 2 equal parts.

Each part is one-half." "Each part is 1/2." So they're both saying the same thing.

Izzy has got it with words and Sofia as numerals.

Let's have a look at this lovely juicy strawberry.

It's been split into halves.

"The whole has been divided into 2 equal parts.

Each party is one-half." How could we write that? "Each part is 1/2." So they both read the same.

In words and in numerals we say one-half for both of them.

What about this one? "The whole has been divided into 2 equal parts.

Each part is one-half." "Each part is 1/2." What about this one? Hmm.

"The whole has been divided into 2 unequal parts." So, "Each part is not 1/2." And that's how we would write not 1/2 using numerals.

What about this one? "The whole has been divided into 2 equal parts." "Each part is 1/2 or 1/2.

1/2 of the cakes are on the plate." And that's how we write it with numerals.

All of the penguins are at the top of the hill.

"The whole has not been divided into 2 equal parts." "Let's make some slide down so that 1/2 are at the bottom of the hill." and I said half, but it was written as numerals.

Looks fun, doesn't it? "Now the whole has been divided into 2 equal parts." "1/2 of the penguins are at the bottom of the hill, 1/2 are at the top".

So I'm reading those numerals as half.

Which picture of the otters matches the sentence? 1/2 of the otters are in the water.

1/2 of the otters are on the land.

The 2 parts are equal.

Hmm.

Pause the video, have a go.

So half was written in this case, not as a word but as numerals, but we read it as half.

And here, the whole group of otters has not been divided into 2 equal groups so there are not 1/2 in the water or on the land.

But here, 1/2 are in the water and 1/2 are on the land.

And that's how we could write it with numerals.

I think you're ready for some practise here.

What do you think? Number one, say the sentence and write the fraction in numerals.

So the whole has been mm into mm equal parts.

We have mm of the parts.

Can you write that as a fraction using numerals? And then complete each sentence by writing 1/2 or not 1/2 using numerals.

And number three, complete each sentence by writing 1/2 or not 1/2, again using numerals.

Very best of luck with that.

I think you're going to be amazing and I'll see you soon for some feedback.

Pause the video.

Welcome back.

How did you get on? Are you feeling confident about writing fractions as numerals? Let's find out.

Number one, the whole has been divided into 2 equal parts.

We each have 1 of the parts.

How do we write that in numerals? Just like this.

And the whole has been divided into 2 equal parts.

1 of the parts is shaded.

And as a fraction written as numerals, it looks like this, just like before.

And number two, complete each sentence by writing 1/2 or not 1/2 using numerals.

So for the first one, each part is 1/2.

The second one, each part is not 1/2.

The third one, each part is not 1/2.

And the final one, each part is 1/2.

And each time we wrote that using numerals.

Number three, complete each sentence by writing 1/2 or not 1/2 using numerals.

Each part is 1/2.

Each part is 1/2.

Each part is not 1/2.

Each part is 1/2.

Each part is not 1/2.

And each part is 1/2.

You're doing really well.

You are well on track to becoming an expert at writing fractions as numerals, let's carry on.

We're going to be writing different fractions.

So you've focused on halves, let's use some other fractions.

What other fractions do you know? What about thirds? What about quarters? Izzy and Sofia cut a pizza into three parts so they can share it with Lucas.

What fraction do you think this is going to give? They're equal parts.

The whole has been divided into 3 equal parts and each part is one-third.

And you knew that, didn't you? I can tell you did.

I wonder if you can write this fraction using numerals? Okay, think about how you wrote 1/2.

Think about how Lucas showed us to write 1/2 using numerals.

Could we use those same three steps, I wonder, to write one-third? Hmm.

"You can indeed," says Lucas, "watch this." Lucas shows Sofia how to write the fraction one-third using numerals.

"The whole has been divided into 3 equal parts.

You have 1 of the parts." So that's the order that we're going.

We write the fraction bar, the denominator, the numerator.

Lucas used Sofia sentence to help him write the fraction.

Let's watch him write it again while Sofia says the sentence and see if you can predict what's going to come up before it comes up.

"The whole has been divided into 3 equal parts.

We each have one of the parts." And that is how to write 1/3 using numerals.

It's quick.

Now Sofia will try to write the fraction while Izzy says the sentence.

Are you ready? Just like before, see if you can predict before it comes up.

"The whole has been divided into 3 equal parts.

We each have one of the parts." And that's how to write 1/3 using numerals.

Each part of the pizza is 1/3.

How are you doing? Do you think you've got this? Let's have a check.

Say the sentence and practise writing the fraction one-third using numerals.

So the sentence is this.

The whole has been mm into mm equal parts.

We each have mm of the parts.

Pause the video and have a go.

Let's see.

The whole has been divided into 3 equal parts and we each have 1 of the parts.

Is that how you wrote one-third? If it is, brilliant, you're on track.

Well done.

You are ready for the next part of the learning.

Izzy says, "We have learned to write 1/2 and 1/3." And Sofia says, "I think we could work out how to write one-quarter." What about you? Do you think you could do that? Could we use that same process? Sofia carefully cuts the watermelon into quarters and writes the fraction in numerals while Izzy says the sentence.

Are you ready? So it's in quarters, four equal parts.

"The whole has been divided into 4 equal parts.

I have one of the parts." And that is how we write 1/4.

Easy as that.

Each part of the watermelon is 1/4.

Izzy divides the rectangle into quarters and writes the fraction in numerals while Sofia says the sentence.

Ready? See if you can predict before it comes up.

Here it is divided into quarters, four equal parts.

Ready.

"The whole has been divided into 4 equal parts.

One of the parts is shaded." And that's how to write 1/4.

Each part of the rectangle is 1/4.

Sofia divides some strawberries into quarters, putting them on four different plates.

She writes the fraction in numerals.

Here we go.

So the plates are equal.

They've each got two strawberries on.

They're in quarters.

That's 1/4.

Right, see if you can do this on your whiteboard if you've got one.

Izzy's going to do the sentence, you write down each part of the fraction in numerals.

"The whole has been divided," write it down.

Did you write that, the fraction bar? "Into 4 equal parts," write it down.

Did you write your 4 there? On the bottom? "One of the parts is circled." Write it down.

Did you write your 1 there? Brilliant, you've written 1/4.

Congratulations.

Each part is 1/4 of the strawberries.

The whole could be an object, a shape, or a set of objects.

You still write the fraction using numerals in the same way.

The whole has been divided into 3 equal parts and I have 1 of the parts.

Each of these is 1/3.

That's how to write 1/3.

Let's have a check.

What fraction of the cakes have cherries on them? Pause the video and have a go.

You might have noticed I didn't say the fractions because I'm hoping by now you can read those fractions.

So the first one says 1/2.

The second one says 1/3.

And the third one says 1/4.

But what's being shown here? Well, I can see 3 equal groups and one of those equal groups has cherries on.

The whole has been divided into 3 equal parts.

1 of the parts has cherries.

And that is how we write 1/3 in numerals.

You're doing really well and I think you're ready for some final practise.

Match the fractions to the correct pictures, number one.

And number two, fill in the boxes to complete the fractions.

Good luck with that and I will see you soon for some feedback.

Pause the video.

Welcome back.

How did you get on? Let's have a look.

Number one, match the fractions to the correct pictures.

This is the correct order.

In this case, the whole has been divided into 4 equal parts and 1 part is circled.

So that's how we write 1/4 using numerals.

The second one, the whole has been divided into 2 equal parts and 1 part is circled.

That's how we write 1/2.

And the final one, the whole has been divided into 3 equal parts and 1 part has a cherry.

That is how we write 1/3.

Number two, fill in the boxes to complete the fractions.

The first one, it's been divided into 3 equal parts, 1 is shaded.

The second one has been divided into 4 equal parts, 1 is shaded.

The third one has been divided into 2 equal parts, 1 is shaded.

The next one has been divided into 4 equal parts and 1 is shaded.

The next one has been divided into 4 equal parts, 1 is shaded.

And the next one has been divided into 2 equal parts and 1 is shaded.

The next one has been divided into 3 equal parts and 1 is shaded.

And the final one has been divided into 3 equal parts and 1 is shaded.

We've come to the end of the lesson.

It's gone by so quickly and I've had so much fun.

Today we've been reading, writing, and understanding fraction notation.

So instead of writing the fractions as words, we've been writing them as numerals and I think it saves time.

You can write a fraction using numerals to show how many equal parts the whole was divided into and how many of those parts you have.

So let's have a look at three examples.

The first one, the whole has been divided into 2 equal parts and 1 part has been shaded.

And then we've got, the whole has been divided, that's shown by the fraction bar, into 3 equal parts, that's the bottom part, and 1 part has been shaded, and that's where we write 1.

And the final one, the whole has been divided into 4 equal parts and 1 part has been shaded.

You are becoming a fraction superstar.

You know about halves, you know about thirds, you know about quarters, and you know how to write these using fraction notation.

Very well done.

I hope you're very proud of yourself and I think you need to give yourself a little gentle pat on the back to say well done.

I hope I get the chance to spend another maths lesson with you in the near future because this has been really fun.

Until then, have a great day.

Try really hard, work really hard and succeed just like you have in this math lesson.

And I'll see you soon.

Goodbye.